At a transit router when multiple LSP are available for a given destination from different protocols EOS does stitching based on hard coded preferences. LFIB stitching preferences give a provision to stitch together different LSPs based on configurable preferences. For each protocol(destination) preference can be configured for a given source protocol.

Normally BGP allocates local labels and installs LFIB entries for all received IPv4/IPv6 Labeled Unicast (LU) routes in anticipation of readvertising them with nexthop-self. However, some deployments don’t require nexthop-self with LU routes, so LFIB hardware resources are needlessly allocated, which can present an issue in large scale LU deployments. 

The MPLS LFIB counters feature was enhanced to add support for counting labels that correspond to VRF termination labels. The full details of the MPLS LFIB counters feature can be found in the original